Abstract:
A method and apparatus are disclosed for delivery of a drug to a recipient. In some embodiments, the delivery apparatus may include a mechanical drive train. Motion of the drive train may drive priming of the device. Subsequently motion of the drive train may discharge the drug. The priming may include unsealing a drug reservoir and/or locking a door. In some embodiments, the rate of discharging may be controlled and/or adjustable. Optionally the apparatus may be disposable. Optionally, the apparatus may have a base that is attachable to the recipient. Optionally, motion of the drive train may be parallel to the base of the apparatus. Optionally, the apparatus may release a hypodermic needle into the recipient. Optionally, release of the hypodermic needle may be in a direction non-parallel and/or orthogonal to the motion of the drive train.
Abstract:
A system and method for a patch-like, self-contained multi-component substance infusion device (1000) which provides one or more substantially hidden patient needles which can be placed in fluid communication with a fluid reservoir assembly that includes a rigid bladder portion used in conjunction with a non-distensible bladder film, such as a metallized film. The device can he attached to a skin surface via an adhesive contact and a pressurization system provides a pressure to the contents of a fluid reservoir assembly. Improvements to dry powdered formulations for reconstitution for preferred use in the device are also disclosed.
Abstract:
A system and method for a patch-like, self-contained substance infusion device (100) which provides one or more substantially hidden patient needles (141) which can be placed in fluid communication with a fluid reservoir assembly that includes a rigid bladder portion (151) used in conjunction with a non-distensible bladder film (151), such as a metallized film. The device (100) can be attached to a skin surface via an adhesive contact surface and a push button (105) activation assembly can then be used to remove an interlock (135), allowing a disk, or Belleville spring (130) assembly to apply an essentially even and constant pressure to the contents of a fluid reservoir assembly. The push button activation assembly further allows the release of one or more spring-loaded patient needles (141) into the skin surface, and establishes a fluid communication path between the patient needles (141) and the pressurized fluid reservoir contents (150) thereby delivering an infusion into the skin. The push button activation assembly further allows the release of one or more improved safety mechanisms after use.
Abstract:
An insertion mechanism (200) and methods of assembly and operation of a drug pump (10) may include an insertion mechanism housing (202); a housing cap; a manifold guide (220); an insertion biasing member (210) initially held in an energized state; a retraction biasing member (216) connected to a hub (212) connected to a proximal end of a needle (214); and, optionally, a clip retainer. The retraction biasing member is held initially in an energized state between the hub and manifold guide. A manifold has a manifold body and one or more septa defining a manifold header. The retraction biasing member may be held initially in an energized state between the hub and the clip retainer. The needle is advanced by the insertion biasing member(s) from the initial configuration to an administration configuration, opening a fluid pathway from the manifold header to the target. The drug delivery pump may include an activation mechanism, a drive mechanism, a fluid pathway connection, and the insertion mechanism.
Abstract:
An injection device is disclosed which comprises a housing (140, 240, 440, 740) for a plurality of cartridges (110,310,410,810) each containing a medicament to be administered to a patient. A plurality of needles (120, 220, 320, 420, 720, 820) may be provided in communication with the plurality of cartridges. A delivery mechanism is arranged to deliver medicament through the plurality of cartridges via the plurality of needles. An injection device may comprise a drive member (130) having a cam surface (136) configured to engage a surface of a carrier (150) and rotate the carrier about a pivot (152) and at least one plunger (134) arranged to engage a cylinder in the cartridge.
Abstract:
Disclosed is a needle insertion arrangement (1) with a drive mechanism (9) comprising: a belt (15) frictionally engaging a first roller (10) and a needle retainer (7) with an injection needle (2) fixed to the belt, the first roller being rotatably arranged about an axis (A), a second roller (11) also rotatably arranged about the axis (A), a first spring (13) rotatably biasing the first roller against the second roller, a second spring (14) rotatably biasing the second roller against an arrester (12), the first and the second roller being connected via an internal protrusion (10.2) and arcuate slot (11.2), the two springs (13, 14) biasing the rollers (10, 11) from respective first to respective second angular positions (ΑΡ1 1 , AP1 2 , AP2 1 , AP2 2 ), and a trigger mechanism (17,20) releasably locking the first and second rollers (10, 11) such that upon pivoting the trigger button (20) in one direction, the first roller drives the belt in one direction to linearly transport the needle retainer towards an extended position, and upon pivoting the trigger button in the other direction, the first roller drives the belt back to retract the needle retainer.
Abstract:
A method and apparatus are disclosed for delivery of a drug to a recipient. In some embodiments, the delivery apparatus may include a mechanical drive train. Motion of the drive train may drive priming of the device. Subsequently motion of the drive train may discharge the drug. The priming may include unsealing a drug reservoir and/or locking a door. In some embodiments, the rate of discharging may be controlled and/or adjustable. Optionally the apparatus may be disposable. Optionally, the apparatus may have a base that is attachable to the recipient. Optionally, motion of the drive train may be parallel to the base of the apparatus. Optionally, the apparatus may release a hypodermic needle into the recipient. Optionally, release of the hypodermic needle may be in a direction non-parallel and/or orthogonal to the motion of the drive train.
Abstract:
An active agent or drug injecting device (10) includes a main housing (16) containing a trigger mechanism (24) which can be manually activated via release bar (32) or remotely triggered via wireless receiver (70) activating motor (74), and a second housing (80) containing an injection- and needle-assembly (22). The needle (30) encloses a dry carrier (26) having an active agent (12) disposed thereon. The trigger mechanism triggers the injection assembly to propel the needle into the skin (via spring (54)), to inject the active agent into a living organism (either by letting the active agent diffuse out of the needle or by actively flushing it out), and to subsequently retract the needle back into the housing (80) (via spring (64)).
Abstract:
An infusion system comprises a disposable wearable infusion device having a body arranged to be adhered to a patient's skin and a reservoir for holding a liquid medicant to be infused into the patient. The infusion system further includes a cannula driver arranged to be detachably joined with the infusion device. The cannula driver includes a cannula and is arranged to drive the cannula into a deployed position extending from the infusion device to beneath the patient's skin.
Abstract:
A system and method for a patch-like, self-contained substance infusion device (700) which provides one or more substantially hidden patient needles (760) which can be placed in fluid communication with a fluid reservoir assembly (710) that includes a rigid bladder portion (712) used in conjunction with a non-distensible bladder film (740), such as a metallized film. The device (700) can be attached to a skin surface via an adhesive contact surface and a push button (780) activation assembly can then be used to remove an interlock (730), allowing a disk, or Belleville spring (735) assembly to apply an essentially even and constant pressure to the contents of a fluid reservoir assembly (710). The push button (780) activation assembly further allows the release of one or more spring-loaded patient needles (760) into the skin surface, and establishes a fluid communication path between the patient needles (760) and the pressurized fluid reservoir contents thereby delivering an infusion into the skin. The push button (780) activation assembly further allows the release of one or more improved safety mechanisms (794) after use which are driven by spring (793) and released by trap-door (790).